refactor: move prunePaths into its own method

packages/vite/src/client/client.ts

@@ -251,16 +251,7 @@ async function handleMessage(payload: HMRPayload) {
       break
     case 'prune':
       notifyListeners('vite:beforePrune', payload)
-      // After an HMR update, some modules are no longer imported on the page
-      // but they may have left behind side effects that need to be cleaned up
-      // (.e.g style injections)
-      // TODO Trigger their dispose callbacks.
-      payload.paths.forEach((path) => {
-        const fn = hmrClient.pruneMap.get(path)
-        if (fn) {
-          fn(hmrClient.dataMap.get(path))
-        }
-      })
+      hmrClient.prunePaths(payload.paths)
       break
     case 'error': {
       notifyListeners('vite:error', payload)

packages/vite/src/shared/hmr.ts

@@ -186,6 +186,19 @@ export class HMRClient {
     }
   }
 
+  // After an HMR update, some modules are no longer imported on the page
+  // but they may have left behind side effects that need to be cleaned up
+  // (.e.g style injections)
+  // TODO Trigger their dispose callbacks.
+  public prunePaths(paths: string[]): void {
+    paths.forEach((path) => {
+      const fn = this.pruneMap.get(path)
+      if (fn) {
+        fn(this.dataMap.get(path))
+      }
+    })
+  }
+
   protected warnFailedUpdate(err: Error, path: string | string[]): void {
     if (!err.message.match('fetch')) {
       this.logger.error(err)